<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>Document</title>
</head>
<body>
    <form action="http://127.0.0.1:2000/" method="GET">
        <input type="text" name="name" /> <br/>
        <input type="text" name="age" /> <br/>
        <input type="radio" name="sex" value="男"/> 男
        <input type="radio" name="sex" value="女"/> 女      
        <br />
        <input type="submit">
    </form>
</body>
</html>